From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Date: Thu, 19 Jul 2007 02:45:45 +0000 (-0300)
Subject: ACPI: thinkpad-acpi: make sure DSDT TMPx readings don't return +128
X-Git-Tag: v2.6.23-rc1~17^2~5^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a8fba3da3d11d808137be7ebeb3b6938a42f011f;p=pandora-kernel.git

ACPI: thinkpad-acpi: make sure DSDT TMPx readings don't return +128

We get +128 instead of -128 from the DSDT TMPx methods, due to errors when
converting a EC byte return that is a s8 to an ACPI handler return that is
an int.

Fix it once and for all, by clamping acceptable temperature readings from
DSDT TMPx so that anything outside the [-127,+127] range is converted to
TP_EC_THERMAL_TMP_NA (-128).

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael Olbrich <michael.olbrich@gmx.net>
Signed-off-by: Len Brown <len.brown@intel.com>
---

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